// 导航下滑
var i = document.querySelector(".navbar-nav .nav-link .hua1");
var i_1 = document.querySelector(".navbar-nav .nav-link .hua2");
var i_2 = document.querySelector(".navbar-nav .nav-link .hua3");
var i_3 = document.querySelector(".navbar-nav .nav-link .hua4");
var i_4 = document.querySelector(".navbar-nav .nav-link .hua5");
var i_5 = document.querySelector(".navbar-nav .nav-link .hua6");
var i_6 = document.querySelector(".navbar-nav .nav-link .hua7");
var i_7 = document.querySelector(".navbar-nav .nav-link .hua8");

var ha = document.querySelector(".navbar-nav .k-1");
var hs = document.querySelector(".navbar-nav .k-2");
var hd = document.querySelector(".navbar-nav .k-3");
var hf = document.querySelector(".navbar-nav .k-4");
var hg = document.querySelector(".navbar-nav .k-5");
var hh = document.querySelector(".navbar-nav .k-6");
var hj = document.querySelector(".navbar-nav .k-7");
var hk = document.querySelector(".navbar-nav .k-8");

ha.addEventListener("mouseover",function(){
  i.style.display = "block";
});
ha.addEventListener("mouseleave",function(){
  i.style.display = "none";
})
hs.addEventListener("mouseover",function(){
  i_1.style.display = "block";
});
hs.addEventListener("mouseleave",function(){
  i_1.style.display = "none";
})
hd.addEventListener("mouseover",function(){
  i_2.style.display = "block";
});
hd.addEventListener("mouseleave",function(){
  i_2.style.display = "none";
})
hf.addEventListener("mouseover",function(){
  i_3.style.display = "block";
});
hf.addEventListener("mouseleave",function(){
  i_3.style.display = "none";
})
hg.addEventListener("mouseover",function(){
  i_4.style.display = "block";
});
hg.addEventListener("mouseleave",function(){
  i_4.style.display = "none";
})
hh.addEventListener("mouseover",function(){
  i_5.style.display = "block";
});
hh.addEventListener("mouseleave",function(){
  i_5.style.display = "none";
})
hj.addEventListener("mouseover",function(){
  i_6.style.display = "block";
});
hj.addEventListener("mouseleave",function(){
  i_6.style.display = "none";
})
hk.addEventListener("mouseover",function(){
  i_7.style.display = "block";
});
hk.addEventListener("mouseleave",function(){
  i_7.style.display = "none";
})




